Lift car damping device

Abstract

The utility model relates to the technical field of elevator equipment, in particular to a car damping device which comprises a supporting frame, the supporting frame is installed at the bottom of an elevator shaft, a buffering unit and a height adjusting assembly are arranged at the upper end and the lower end of the supporting frame respectively, and the height adjusting assembly is used for adjusting the height of the buffering unit. Wherein the top acting end of the buffer unit abuts against the bottom of the lift car, the bottom of the buffer unit is fixedly connected to a connecting base, the connecting base and the supporting frame are fixed through a quick release assembly, and the buffer is driven to conduct height adjustment in the mode that a screw rod is rotated to drive a supporting table to slide along a wedge-shaped part. In addition, the buffer can be conveniently and rapidly disassembled and separated only by rotating the unlocking piece to control the fastening or loosening mode of the fastening piece, and the assembling efficiency of the buffer can be improved.

Description

Technical Field

[0001] This utility model relates to the field of elevator equipment technology, and in particular to a car vibration damping device. Background Technology

[0002] Elevator buffers are an important component of elevator safety systems. They are usually installed in one or more units at the bottom of the elevator shaft. Their main function is to protect the safety of passengers and equipment by absorbing and dissipating impact energy when the elevator goes out of control or malfunctions.

[0003] Buffers are typically installed on the elevator pit floor via a base. However, when issues arise due to deviations in the site's civil engineering, the buffer height needs to be adjusted. For example, Chinese Patent Publication No. CN216190183U discloses an elevator buffer fixing structure with height adjustment function, relating to the field of elevator equipment technology. This structure includes a buffer installed on the pit floor at the bottom of the elevator shaft. The bottom of the buffer contacts the pit floor via a detachable lower base and an upper base. The upper and lower bases are equipped with an adjustment mechanism to adjust the combined height of the upper and lower bases. The lower base is fixed to the pit floor via a bracket using a non-drilling structure. This invention allows for convenient and quick adjustment of the buffer's installation height through the adjustment mechanism. Furthermore, the non-drilling structure of the lower base maintains the integrity of the building structure, avoiding the need for extensive later modifications. This invention features a simple and compact structure, excellent performance, and high practicality.

[0004] In actual operation, the bottom of the buffer is fixedly connected to the upper base, and the bottom of the buffer and the upper base are connected and fixed by multiple locking bolts. Considering that the fixing method of locking bolts is not convenient for the buffer to be easily disassembled and assembled, thus affecting the assembly efficiency. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the inconvenience of disassembling and assembling the buffer, and to propose a car shock absorption device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a car vibration damping device, including a support frame, which is installed at the bottom of the elevator shaft. A buffer unit and a height adjustment component are respectively provided at the upper and lower ends of the support frame, and the height adjustment component is used to adjust the height of the buffer unit.

[0008] The top working end of the buffer unit abuts against the bottom of the car, and the bottom of the buffer unit is fixedly connected to the connecting seat. The connecting seat and the support frame are fixed together by a quick-release assembly.

[0009] Furthermore, the height adjustment component includes a base and a support platform. The base is fixedly connected to the bottom of the elevator shaft, and the base and the support platform are arranged vertically. A pair of first wedge-shaped parts and a second wedge-shaped part are respectively provided on opposite sides of the base and the support platform.

[0010] Furthermore, each of the two second wedge-shaped portions has a limiting groove on the opposite side of its bottom, and the second wedge-shaped portion slides against the top of the first wedge-shaped portion through the limiting groove;

[0011] The base has a screw that is slidably connected to the top of the base via a straight groove, and the threaded end of the screw is threadedly connected to the bottom of the support platform.

[0012] Furthermore, the quick-release assembly includes a connecting rod, an unlocking component that rotates eccentrically at the bottom of the connecting rod, a fastener that is threadedly connected to the top shaft end of the connecting rod, and a stop component that is slidably connected to the outer periphery of the bottom shaft end.

[0013] Furthermore, the connecting seat has short sliding grooves connecting the sides on opposite sides, and a limiting groove is provided at the top of the connecting seat at the short sliding groove. The top two sides of the support frame have long sliding grooves corresponding to the short sliding grooves, wherein the connecting rod is slidably connected to the short sliding groove along the long sliding groove.

[0014] Furthermore, the two sides of the abutment contact the support frame and the unlocking member respectively. The unlocking member drives the connecting rod to move down by eccentric rotation so that the fastener is engaged in the limiting groove.

[0015] The car vibration damping device proposed in this utility model has the following advantages: A height adjustment component is provided between the support base and the elevator shaft floor. By rotating the screw, the support platform slides along the wedge-shaped part, thereby adjusting the height of the buffer. This prevents issues such as civil engineering deviations from causing the buffer's working end to fail to contact the bottom of the car, thus preventing the buffer from performing its damping function. Furthermore, a quick-release component is provided between the buffer and the support frame. The buffer can be easily and quickly disassembled and separated by simply rotating the unlocking component to control the tightening or loosening of the fasteners, improving the assembly efficiency of the buffer. The structure is simple and highly practical. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2This is a schematic diagram of the height adjustment component of this utility model;

[0018] Figure 3 This is an enlarged view of the height adjustment component of this utility model;

[0019] Figure 4 This is a schematic diagram of the quick-release component of this utility model;

[0020] Figure 5 for Figure 4 A magnified structural diagram of area A.

[0021] In the diagram: 1. Support frame; 11. Long slide groove; 2. Buffer unit; 3. Height adjustment component; 31. Base; 311. First wedge-shaped part; 312. Straight groove; 32. Support platform; 321. Second wedge-shaped part; 322. Limiting groove; 34. Screw; 4. Connecting seat; 41. Short slide groove; 42. Limiting groove; 5. Quick release component; 51. Connecting rod; 52. Unlocking component; 53. Fastener; 54. Abutment component. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-5 A car vibration damping device includes a support frame 1, which is installed at the bottom of the elevator shaft. A buffer unit 2 and a height adjustment component 3 are respectively provided at the upper and lower ends of the support frame 1. The height adjustment component 3 is used to adjust the height of the buffer unit 2.

[0024] The top working end of the buffer unit 2 abuts against the bottom of the car, and the bottom of the buffer unit 2 is fixedly connected to the connecting seat 4. The connecting seat 4 and the support frame 1 are fixed together by a quick-release assembly 5.

[0025] In some embodiments, the buffer unit 2 is an elevator buffer in the prior art. The specific principle of the elevator buffer is to absorb and consume impact energy through damping. Therefore, considering that the depth of the elevator shaft may be incorrect due to civil engineering reasons, the height adjustment component 3 can adjust the height of the buffer to prevent the working end of the buffer from not touching the bottom of the car.

[0026] Furthermore, the height adjustment component 3 includes a base 31 and a support platform 32. The base 31 is fixedly connected to the bottom of the elevator shaft. The base 31 and the support platform 32 are arranged vertically. A pair of first wedge-shaped portions 311 and second wedge-shaped portions 321 are respectively provided on opposite sides between the base 31 and the support platform 32.

[0027] Furthermore, each of the two second wedge-shaped portions 321 has a limiting groove 322 on opposite sides of its bottom, and the second wedge-shaped portion 321 slides against the top of the first wedge-shaped portion 311 through the limiting groove 322;

[0028] The top of the base 31 is slidably connected to a screw 34 via a straight groove 312, and the threaded end of the screw 34 is threadedly connected to the bottom of the support platform 32.

[0029] It is worth mentioning that the height adjustment between the base 31 and the support platform 32 can be referred to the machine tool level adjustment method in the prior art. In specific operation, the second wedge 321 is slidably connected to the first wedge 311 through the limiting groove 322 to prevent the first wedge 311 from separating from the second wedge 321 during the adjustment process.

[0030] Furthermore, the limiting groove 322 can be a T-shaped groove, and a T-shaped block can be provided on the top of the first wedge-shaped part. The T-shaped block is slidably connected to the T-shaped groove to prevent the base 31 from separating from the support platform 32.

[0031] Specifically, the screw 34 is rotated by an external tool, and the screw 34 drives the support platform 32 to move laterally through the threaded end. When the support platform 32 moves laterally, the second wedge 321 and the first wedge 311 slide against each other, thereby achieving the height adjustment function through the wedge surface.

[0032] The lateral movement distance between the base 31 and the support platform 32 is controlled within an appropriate range. Then, the position of the base 31 is adjusted according to the actual adjustment height to prevent the working end of the buffer unit 2 from not corresponding to the position of the bottom of the car.

[0033] More specifically, the quick-release assembly 5 includes a connecting rod 51, an unlocking component 52 that rotates eccentrically at the bottom end of the connecting rod 51, a fastener 53 that is threadedly connected to the top shaft end of the connecting rod 51, and a stop component 54 that is slidably connected to the outer periphery of the bottom shaft end.

[0034] In general, the connecting seat 4 has short sliding grooves 41 on both sides of the opposite side, and the top of the connecting seat 4 is also provided with a limiting groove 42 at the short sliding groove 41. The top two sides of the support frame 1 are provided with long sliding grooves 11 corresponding to the short sliding grooves 41. The connecting rod 51 is slidably connected to the short sliding groove 41 along the long sliding groove 11.

[0035] Finally, the two sides of the abutment 54 abut against the support frame 1 and the unlocking member 52 respectively. The unlocking member 52 drives the connecting rod 51 to move down by eccentric rotation so that the fastener 53 is engaged in the limiting groove 42.

[0036] It is worth mentioning that the working method between the unlocking part 52, the connecting rod 51 and the abutment part 54 can be referred to in the prior art for the quick disassembly structure of the cam handle locking screw;

[0037] It should be added that after the connecting rod 51 passes through the long slide groove 11, its end is threadedly connected to the fastener 53, and the connecting rod 51 slides along the long slide groove 11 to the short slide groove 41 to rotate the unlocking member 52. The unlocking member 52 drives the connecting rod 51 and the fastener 53 to move down through the eccentric rotation action. Then, the fastener 53 is rotated to place it in the limiting groove 42. The fastener 53 cooperates with the abutment member 54 to abut against the limiting groove 42 and the support frame 1 respectively, so as to fix the support frame 1 and the connecting seat 4.

[0038] Specifically, when the unlocking component 52 is reversed, the connecting rod 51 and the fastener 53 can be driven to move upward. The fastener 53 can disengage from the limiting groove 42 without reversing and rising. At this time, the connecting rod 51 slides along the long slide groove 11 and disengages from the short slide groove 41, and the support frame 1 can be separated from the connecting seat 4.

[0039] Working method: During operation, the buffer unit 2 rests against the support frame 1 above the bottom connecting seat 4, and the connecting seat 4 and the support frame 1 are then connected and fixed by the quick-release assembly 5;

[0040] Then, when the height of the buffer unit 2 needs to be adjusted, the screw 34 is rotated by an external tool. The screw 34 drives the support platform 32 to move laterally through the threaded end. When the support platform 32 moves laterally, the second wedge 321 and the first wedge 311 slide against each other, and then the height adjustment is achieved through the wedge surface.

[0041] Finally, when the car malfunctions and slides down into the elevator shaft, the bottom of the car comes into contact with the working end of the buffer unit 2. The working end of the buffer unit 2 plays a buffering and shock-absorbing role through damping.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A car shock absorption device, comprising a support frame (1), characterized in that: The support frame (1) is installed at the bottom of the elevator shaft. A buffer unit (2) and a height adjustment component (3) are respectively provided at the upper and lower ends of the support frame (1). The height adjustment component (3) is used to adjust the height of the buffer unit (2). The top working end of the buffer unit (2) abuts against the bottom of the car, and the bottom of the buffer unit (2) is fixedly connected to the connecting seat (4). The connecting seat (4) and the support frame (1) are fixed together by a quick-release assembly (5).

2. The car shock absorption device according to claim 1, characterized in that: The height adjustment component (3) includes a base (31) and a support platform (32). The base (31) is fixedly connected to the bottom of the elevator shaft. The base (31) and the support platform (32) are arranged vertically. A pair of first wedge-shaped parts (311) and second wedge-shaped parts (321) are respectively provided on opposite sides between the base (31) and the support platform (32).

3. The car shock absorption device according to claim 2, characterized in that: Each pair of second wedge-shaped portions (321) has a limiting groove (322) on opposite sides of its bottom, and the second wedge-shaped portion (321) slides against the top of the first wedge-shaped portion (311) through the limiting groove (322); The top of the base (31) is slidably connected to a screw (34) via a straight groove (312), and the threaded end of the screw (34) is threadedly connected to the bottom of the support platform (32).

4. The car shock absorption device according to claim 1, characterized in that: The quick-release assembly (5) includes a connecting rod (51), an unlocking component (52) that rotates eccentrically at the bottom of the connecting rod (51), a fastener (53) that is threadedly connected to the top shaft end of the connecting rod (51), and a stop component (54) that is slidably connected to the outer periphery of the bottom shaft end.

5. A car shock absorption device according to claim 4, characterized in that: The connecting seat (4) has short sliding grooves (41) with connecting sides on opposite sides, and the top of the connecting seat (4) is also provided with a limiting groove (42) at the short sliding groove (41). The top two sides of the support frame (1) are provided with long sliding grooves (11) corresponding to the short sliding groove (41). The connecting rod (51) is slidably connected to the short sliding groove (41) along the long sliding groove (11).

6. A car shock absorption device according to claim 5, characterized in that: The abutment (54) abuts against the support frame (1) and the unlocking member (52) on both sides respectively. The unlocking member (52) drives the connecting rod (51) to move down by eccentric rotation so that the fastener (53) is engaged in the limiting groove (42).

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